Special Repairs to Lightning Protection System at INHS Jeevanti and Special Repair Replacement of BER ceiling Fans at NOFRA under GE Gomantak Vasco

Amount

M&L for electrogrip safe chemical earthing , electrode made of 17mm dia copper rod, 3 mtr long with connecting strip head with SS fastener, inspection joint box and also connect copper strip with electrode rod and inspection joint box with nut, bolts and GI washers etc . The electrodes will be filled with highly conductive non-corrosive crystalline conductive mixture with connective arrangement for connection of strip/cable etc. The electrode will be installed along with conductive and low resistance powder tested to the resistivity of 0.2 ohms as per IEC 62561-7 read with ASTM G57-06, CI 3.4 connected to copper strip by means of nut bolts check nuts and washer of GI or steel including necessary drilling in earth upto 3 mtr in any type of soil for inserting electrode in any type of strata, PCC 1:3:6 type C2 for earth pit of suitable size and earth pit cover with frame including taking out of old u/s earthing complete , all as directed by Engr-in-Charge.

Supply and fixing Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. as required 32 x 6 mm copper strip as per directed by Engr-in-Charge.

M&L for test point terminal block made out of gun metal 75 mm x 75 mm x 25 mm drilled and screwed including three Nos 8mm dia 25 mm long hexagonal head screws and including provision of suitable MS box made out of 3 mm thick MS sheet to accommodate the terminal block all as specified and directed by Engr-in-Charge.

M&L for laying GI pipe 40mm dia light grade use for the protection of copper strip including taking down of old u/s pipes. Make-Parkash/Jindal/ TATA.

Supply & fixing aluminium strip 25 x 3 mm fix on porcelain insulator for roof conductors and down conductors above ground level as lighting conductor (including insulater) for building /store shed all as directed including removing the old U/S strips.

Supply and fixing Air termination, single pointed Copper Rod 12mm dia and 300 mm long including taking down of old termination strip as specified and directed by Engr-in-Charge.

M&L for preparation of old PCC 1:3:6 type C-1 using 20mm grade broken stone aggregate in coping including necessary form work as directed by Engr-in-Charge.

Supply & fixing ceiling fan 1200mm sweep (ISI Marked), 230 volts including connection rod as per existing size of length of GI pipe medium grade complete all as specified and directed by Engr-in-Charge. Make Usha/Havells/Bajaj

Mehta and Co.

S and G Constructions

ASHWAMEDH ENGINEERS

Sai Supreme Constructions

Shine Enterprises

NATIONAL ENGINEERING CORPORATION

M/s Gayatri Contruction Co.